标准_BS 970-3 1991 下载积分: 900 内容提示: BRITISH STANDARDBS 970-3:1991Incorporating Amendment Nos. 1 and 2Specification forWrought steel for mechanical and allied engineering purposes —Part 3: Bright bars for general engineering purposesLicensed Copy: Institute Of Technology Tallaght, Institute ...
内容提示: BS 970-3:1991Incorporating Amendment Nos. 1 and 2Wrought steel for mechanical and allied Part 3: Bright bars for general 文档格式:PDF | 页数:38 | 浏览次数:1000 | 上传日期:2016-05-30 02:29:38 | 文档星级: BS 970-3:1991Incorporating Amendment Nos. 1 and 2Wrought steel ...
BRITISH STANDARDBS 970-3:1991Amendment Nos. 1 and 2Incorporating Specification forWrought steel for mechanical and allied engineering purposes —Part 3: Bright bars for general engineering purposesLicensed Copy: Institute Of Technology Tallaght, Institute of Technology, Fri Jul 20 10:07:21 GMT+00:00...
对应标准 BS 970-3-1991 机械及相关工程用锻钢 第3部分:一般工程用光亮钢棒 Specification for wrought steel for machanical and allied engineering purposes part 3:bright bars for general engineering purposes 归类 碳钢 080M40 化学元素成分含量(%) 成分C Si Mn P S Cr * Ni * Mo * 最小值 0.36 ...
t h g a l l a T y g o l o n h c e T f O e t u t i t s n I : y p o C d e s n e c i L ii © BSI 11-1998 BS 970-3:1991 I S B ) Foreword c ( , y p o C This Part of BS 970 has been prepared under the direction of the Iron and Steel d Stan...
对应标准 BS 970-3-1991 机械及相关工程用锻钢 第3部分:一般工程用光亮钢棒 Specification for wrought steel for machanical and allied engineering purposes part 3:bright bars for general engineering purposes 归类 合金钢 817M40 化学元素成分含量(%) 成分C Si Mn P S Cr Ni Mo 最小值 0.36 0.1 0.45...
Methodsofanalysis.Determinationofdecarburizationinsteel.Methodsfordeterminingdecarburizationbymicroscopicandmicro-hardnesstechniques.Methodsfordeterminingdecarburizationbychemicalandspectrographicanalysistechniques.Methodsforthesamplingandanalysisofiron,steelandotherferrousmetals.Tensiletestingofmetallicmaterials—Part1:Methodoftest...
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carbon steel BS970：070 M20 Werkstoff NO.1.0402是说材料是英国标准的碳钢,牌号070 M20 ,或德国的1.0402,BS970是标准号,相当于中国的20#钢.BS 970 070M20是BS 970 part3的070M20，优质碳素结构钢，对应我过的GB/T699的20Mn，具体成分为：C 0.16~0.24Si 0.10~0.40Mn 0.50~0...
BS 970 070M20属于英国标准碳素结构钢，执行标准：BS 970-3 1991 BS 970 070M20高锰低碳渗透钢，因锰高故其 强度.塑性.可切削性和淬透性高，渗碳与淬火时表面形成软点较少，宜进行渗碳.碳氮共渗处理，得到表面耐磨而心部韧性好的综合性能。热轧或正火处理后韧性好。 适用于齿轮、曲柄轴、支架、绞...